MESON Chess Problem Database

Problem Display
PID: 81301 (8/b2Q2p1/7N/7p/P1PpPp1r/rp1k4/PP1N1P1p/3K3B w - - 0 1)

Pituk, Alexander

Moment, 1998

8/b2Q2p1/7N/7p/P1PpPp1r/rp1k4/PP1N1P1p/3K3B

#2

11 + 10

SOLUTION

  • SOUND
  • Tries
    • 1.Qh3+?
      • 1...f3
        • 2.Qf1#
        • 2.Qxf3#
      • 1...Rxh3!
    • 1.Qb5?
      • threat
        • 2.c5#
      • 1...Rxa4
        • 2.Qxb3#
      • 1...Bc5!
    • 1.Qf5?
      • threat
        • 2.e5#
      • 1...f3
        • 2.Qxf3#
      • 1...g6!
    • 1.e5?
      • threat
        • 2.Be4#
        • 2.Qf5#
      • 1...g6
        • 2.Be4#
      • 1...f3!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Se5#
      • 1...Kxc4
        • 2.Qb5#
      • 1...Kxe4
        • 2.Qf5#
      • 1...Bb8
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(K);CHECK,N_PINP(e)
      • Refutation
        • R(g);XQ(K)
    • Try
      • Q(K);N_PINP(e)
      • Threat
        • QAB(K)+P(H)
      • Vars
        • R(b);N_GUARD,XP(G)::QAR2(K),XP(c)
      • Refutation
        • B(i);
    • Try
      • Q(K);N_PINP(e)
      • Threat
        • QAB(K)+P(I)
      • Vars
        • P(f);OGATE::QAR2(K),XP(f)
      • Refutation
        • P(j);
    • Try
      • P(I);
      • Threat
        • DUALS(2)
      • Vars
        • P(j);::B(B)
      • Refutation
        • P(f);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);N_SPINP(e),OGATEB,S_FLIGHT,XP(H)::QAB1(K)
      • K(d);N_SPINP(e),OGATEB,S_FLIGHT,XP(I)::QAB1(K)
      • B(i);N_GUARD::QAR1(K),XP(e)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).